Transparent ink-jet recording films, compositions, and methods

Abstract

Transparent ink-jet recording films, compositions, and methods are disclosed. Such films do not exhibit excessive ink drying times. These films can be free of such visual effects as mud cracking. These films are useful for medical imaging.

What is claimed: 
     
       1. A transparent ink-jet recording film comprising:
 a substrate; 
 at least one under-layer disposed on said substrate, said at least one under-layer comprising at least one borate or borate derivative and at least one first water soluble or water dispersible polymer comprising at least one hydroxyl group; and 
 at least one image-receiving layer disposed on said at least one under-layer, said at least one image-receiving layer comprising at least one inorganic particle and at least one second water soluble or water dispersible polymer comprising at least one hydroxyl group, 
 wherein the at least one under-layer has a borate or borate derivative coverage of at least about 2.01×10 −12  m 12 /g 6  times the seventh power of the image-receiving layer coating weight and less than about 3 g/m 2 . 
 
     
     
       2. The transparent ink jet recording film according to  claim 1 , wherein said at least one borate or borate derivative comprises at least one hydrate of sodium tetraborate. 
     
     
       3. The transparent ink-jet recording film according to  claim 1 , wherein said at least one borate or borate derivative comprises sodium tetraborate decahydrate. 
     
     
       4. The transparent ink-jet recording film according to  claim 1 , wherein said at least one first water soluble or water dispersible polymer comprises poly(vinyl alcohol). 
     
     
       5. The transparent ink-jet recording film according to  claim 1 , wherein said at least one second water soluble or water dispersible polymer comprises poly(vinyl alcohol). 
     
     
       6. The transparent ink-jet recording film according to  claim 1 , wherein said at least one inorganic particle comprises boehmite alumina. 
     
     
       7. The transparent ink-jet recording film according to  claim 1 , wherein the image-receiving layer further comprises nitric acid. 
     
     
       8. The transparent inkjet recording film according to  claim 1  wherein the image-receiving layer coating weight is less than about 54.8 g/m 2 . 
     
     
       9. The transparent ink-jet recording film according to  claim 1 , wherein the at least one under-layer has a borate or borate derivative coverage less than about 2 g/m 2 . 
     
     
       10. The transparent ink-jet recording film according to  claim 1 , wherein the image receiving layer coating weight is about 41.5 g/m 2  and the at least one under-layer has a borate or borate derivative coverage of at least about 0.427 g/m 2 . 
     
     
       11. The transparent ink-jet recording film according to  claim 1 , wherein the image receiving layer coating weight is about 45.1 g/m 2  and the at least one under-layer has a borate or borate derivative coverage of at least about 0.992 g/m 2 . 
     
     
       12. The transparent ink-jet recording film according to  claim 1 , wherein the borate or borate derivative coverage is at least about 2.61×10 −12  m 12 /g 6  times the seventh power of said image-receiving layer coating weight. 
     
     
       13. The transparent inkjet recording film according to  claim 12  wherein the image-receiving layer coating weight is less than about 52.8 g/m 2 .